India’s poor air quality is choking its people and its economy

Ozone-related deaths have risen by 150% since 1990, while premature deaths cost the equivalent of 7.6% of GDP, says Shashi Tharoor.

A municipal worker with her daughter leaves after sweeping the India Gate area as a thick lawyer of pollution haze hangs a day after the Diwali festival, in New Delhi, this month. Delhi had just three ‘clean air days’ in 2017. Picture: Manish Swarup/AP

Afriend, a diplomat returning home after three years’ service in India, was asked at his exit medical examination how many packs a day he smoked.

When he said that he was not a smoker, the doctor said that X-rays of his lungs showed otherwise.

But my friend had never lit up. All he had done was breathe Delhi’s air, three smoggy winters in a row.

It is that bad. When November comes, India — and particularly its capital city — begins to choke on a thick blanket of smog that fills lungs, corrodes throats, and impairs visibility.

It’s not just Delhi’s notorious diesel fumes, from car and truck exhausts. There are also industrial factories spewing smoke, charcoal braziers on the sidewalks keeping pavement dwellers warm, coal stoves used by roadside chaiwallahs (tea-sellers), and even the agricultural stubble burned by farmers in the nearby states of Punjab and Haryana.

All of these air pollutants sweep into the capital city, with vehicular emissions adding to the dust that Mother Nature has already bestowed on Delhi in abundance.

Delhi had just three ‘clean air days’ in 2017. But the worst air quality is in winter, when polluted air meets winter fog and is trapped, giving Delhi a grayish opacity that reduces visibility, delays flights, and brings the city’s traffic to an even more polluting crawl.

The consequences are alarming. The number of premature deaths due to air pollution is rising. Poor air quality is now costing India 1% of GDP every year in respiratory diseases, reduced productivity, and increased hospitalisation, and may be reducing Indians’ lifespans by three years.

According to the ‘State of Global Air’ report published by the Health Effects Institute, the absolute number of ozone-related deaths in India rose by a staggering 150% from 1990 to 2015.

The economic implications are equally ominous. A 2013 World Bank study estimated that welfare costs and lost labour income due to air pollution amounted to 8.5% of India’s GDP.

Labour losses (in terms of number of man days, for example) due to air pollution totalled €50bn in 2013, and premature deaths have cost the country €500bn, or roughly 7.6% of GDP.

Moreover, India’s toxic air is also dissuading executives from accepting assignments in Delhi: people are turning down lucrative jobs to save their lungs.

In 2015, the New York Times’ former South Asia correspondent, Gardiner Harris, explained that he was leaving his post prematurely, because merely living in Delhi was damaging his children’s health.

Describing the asthmatic travails of his eight-year-old son, Harris wrote that Delhi is “suffering from a dire paediatric respiratory crisis,” in which “nearly half of the city’s 4.4m schoolchildren have irreversible lung damage from the poisonous air.”

He and other expatriates were “pursuing our careers at our children’s expense,” and he concluded that it was “unethical for those who have a choice to willingly raise children here.” So, he picked up his children and left India.

Most Indians don’t have that choice. They must live with what the media often refer to as Delhi’s ‘killer dust’ — respirable, suspended particulate matter that becomes lodged in the lungs and impairs our breathing.

A study of Delhi schoolchildren aged between four and 17 years of age, conducted by the Kolkata-based Chittaranjan National Cancer Institute, found that key indicators of respiratory health and lung function were two to four times worse than in schoolchildren elsewhere. And the damage was irreversible.

India needs to make improved air quality a national priority. It needs to create state and national action plans for clean air; set tough, new targets for thermal power plant emissions, factory chimneys, and automobile exhausts; and establish a proper air-pollution monitoring system.

And it needs to act fast. According to the World Health Organisation, 13 of the world’s 20 most polluted cities and towns are in India.

More than a million Indians are dying every year because of bad air.

The government’s complacency is appalling, but not surprising. Public discussion of India’s deteriorating air quality and its effects on human health — and thus awareness of the problem — is startlingly limited.

India’s politicians need to design an action plan that generates a groundswell of public pressure on the government to confront the issue. The Indian public, so easily distracted by issues of identity politics, like temple-building and rewriting history, should be demanding something far more fundamental: the ability to breathe.

The satirical songwriter Tom Lehrer famously warned listeners that if they visit an American city, “Just two things of which you must beware/ Don’t drink the water and don’t breathe the air.”

Updated for India, it is a perfect song for a crisis that has become an existential threat.

- Shashi Tharoor, a former UN under-secretary-general and former Indian minister, is chairman of the Parliamentary Standing Committee on External Affairs and an MP for the Indian National Congress.

- Copyright: Project Syndicate, 2018.


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